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2011-09-15

Peter Wentworth told me that my Online Python Tutor doesn't properly

render 'None' types. e.g.,:

z = None

Also, in Peter Wentworth's Python 3 implementation, when you've hit the

FINAL step, he displays that the program has terminated rather than

"Step N of N", which is a more user-friendly touch! Instead, he

displays the penultimate step as "Step (N-1) of (N-1)"